Booster equipped locomotive



July 26, 1932. K, KLUG 1,869,155

BOOSTER EQUIPPED LOCOMOTIVE Filed Jan. 29, 1932 2 Sheets-Sheet l Alk Filed Jan.l 29, 1952 2 Sheets-Sheet 2 /n vena Patented July 26, 1932 UNITED STATES PATENT oFElcE KURT KLUG, OF BERLIN-GHARLOTTENBURG, GERMANY, ASSIGNOR"IO LOCOMOTIV BOOSTER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF. DELAWARE BOOSTER EQUIPPED Loooiuo'rvn` Application filed January 29, 1932, Serial No.

This invention relates to improvements in.

booster equipped locomotives and in particular to locomotives equipped with high pressure booster motors.

One of the primary objects of my invention is to increase the eifectiveness of hlgh pressure ly on the line 1 1 of Figure 2;

Figure 2 is a plan view of Figure 1, partly in section on the line 2-2 of Figure 1.

In these fgu res I have illustrated the booster motor as being of the three-cylinder type and particularly adapted to be operated by high pressures. The aXle of the trailing wheels 7 of the locomotive runs in bearings (not shown) located outside of the wheels and mounted on the frame ofthe locomotive or truck in the usual manner. This aXle carries a gear 26 adapted to be driven by the booster motor through the medium of the driving pinion 27 keyed on thecrank shaft 28 and the idler gear 29 with which the pinion 27 is permanently engaged. The idler gear 29 has its shaft 30 mounted at the free end of a rocking member 31 which is adapted to be moved in a direction to cause engagement and disengagement of the gear 29 with the gear 26 by' means of a well known air pressure or similar device which may be controlled from the cab of the locomotive.

The pistons 32 of the three cylinders 33 are connected to the crank pins 34, 35 and 36 of the crank shaft 28 by means of connecting rods 37, cross heads 38 and piston rods 39. The admission of steam to the cylinders is regulated by piston or plug valves 40 operated by means of eccentrics 41. The eccentrics 41 are secured to a shaft 42 carryingv a gear 43 meshing with an idler gear 44 in turn meshing centre will fall in the' centre, plane.v

589,610,` and in Germanyseptember 9, 1930.

with a gear 45 secured on the crank shaft 28. This gearing is so designed that the eccentric shaft 42 makes'the same number of revolutions in the same direction asfthe crank shaft 28. The eccentrics 41 cause reciprocation of v the valves 40 thru the medium of the arms'46,

In utilizing high steam pressures, the cylini ders may be made small enough in'diameter to be installed in the very limitedspace available. out that where high boiler pressures areemployed, the use -of three ormore'cylinders,

each of vcomparatively small diameter, overcomes the danger of slipping'the boosterwheels 'which might very well take vplace were conventional two-.cylinder booster-:imotors employed. Considerable difficulty is encountered, however when the framecfthe three-cylinder booster is to besuspended in three points,l as it is usual with two-cylinder boosters. When suspending the frameV in three points the frame is usually carried by two bearings running on thelaXle 'driven by the booster and by centre bearing on a cross bar serving as third suspension point, which cross bar. is supportedat its ends` on the. locomotive frame andbufferedbys'prings. Now the difliculty is, that thecentre-bearing of the three-pointy suspension would interfere In this connection it is pointed l i with the crossheadguide of the middle cylinl der. According to the' invention this 'dii- Y culty is overcome by moving themlel CyL' $0 inder 33 laterally sofar from the frame cen-V n Y tre Vthat the centre'bearing Aof the-threei-poin't so far to the opposite side, that the mass In Fig. 2 g/ is the distance, by which the pinion -29 has been moved outl ofthe centre y plane 0c of the frame 5 0; The frame 50 is suspended on the axle 25 by the bearings 51 and 52. The third suspension point of the v frame 50 lies in the centre plane As shown v Y ported by it into the central'plane m.

in Fig. 2, the frame 50 bears va centre pin socket 53 Which rests on a spherical pivot 54 fixed in a cross rbar 55. The Ycross bar is elastically supported on both sides by the locomotive frame in the known manner which is not shown here. The spherical pin 54C and the socket 53 are held together, by a bolt 56 passing thru central holes in the socket 53 and the spherical pin 54k and carrying at its upper end a flange 57, Which flange is fixed to the socket 53 of frame-50 by studs 58. The bolt 56 iits snugly in the hole .of the socket 53 but has ample clearance in the hole of the pin 54. In this clearance -space a spring 59 is put roundthe bolt. This spring Vbears With one end against the under side of the socket 53, With the other end against a Washer 60 resting on a nut at the lower'end of the bolt 56. l

The middle cylinder 33 and the kcrank pin of the corresponding crank a-Xle28 are so far distant from the centre plane m of frame 50, thatthe corresponding crosshead guide l62 can be placed alongside the flange 57- of the bolt 56 of the centreY bearing. At the same time, When the middle cylinder and the corresponding parts are moved laterally to one side and the Wheel gear for the trailing aXle tothe opposite side of the central plane, the resulting distributionv of Weight will be such vas to bring the centre of gravity of the total mass of the frame 5() and of the parts stips shown in the drawings the gearing, which connects the intermediate shaft 42 to the crank shaft 28, is located at .the same side of the central plane as the gearing vfor the trailing aXle 25.

I claim: I y

l. In a locomotive equipped With a booster, a-three-cylinder boostermotor, a booster frame suspended in three points, a' crank shaft driven by the booster motor, a trailing axle connected with the crank shaft by a gearing7 the middle cylinder of the booster motor being moved laterally to one side and the gearing forthe trailing aXle to the oppof site side of the central plane of the booster frame,'the resulting distribution of Weight being such as to bring the centre of gravity of thetotal mass of said frame'and of the parts supported by it substantiallyvinto said central plane. r

V2. Ina locomotive equipped with a booster, i

a three-cylinder Vbooster motor, a booster frame vsuspended 1n three points, a crank shaft Vdriven by the booster motor, a trailing motor being moved laterally to onek side and the gearing for the trailing axle to the 0pposite side of the central plane ofthe boost-Y signed my name.

' KURT K-LUG. Y

' IDO V'axle connected With the crankshaft by a gearing, the middle cylinder of the booster 

